Improvement in call-bells and caster-stands



eheheh rmer anni @time Letters Patent No. 109,101, dated November 8,1870.

IMPROVEMENT IN CALL'BElLLS AND CASTER'STANDS.

The Schedule referred to in these Letten Patent andmaking part o! thesame.

To all whom it may concer-n:

Be it known that I, FREDEEIcK ANTON BLT- TERLIEN, of West Meriden, inthe county of New Haven and` State of Connecticut, haveA invented a newand improved Call-Bell and Caster-Stand, com= bined'; and I do herebydeclare the following to be a full, clear, and exact descriptionthereof, which will enable those skilled in the art to make and 'use thesame, reference being had to the accompanying draw- -ing forming part ofthis speciiication, which'. drawing represents a vertical centralsection of my invention.

This invention consists in -the arrangement of a toothed rack on theinner end of the touch-rod which projects up through the center of thebell, in combination with a pinion which gears in said rack, and fromwhich extends the rod carryingr the clapper in such a manner that bydepressing the touch-rod the pinion is caused to revolve and the clapperis thrown in contact with the bell, and when said touch-redis releasedthe weight of the clapper causes the pinion to revolve in the oppositedirection, and the touch-rod, with its raeldare carried back to theiroriginal position.

A suitable guide-roller keeps the rack of the touchrod in gear with theclapper-pinion.

.The invention consists, also, in the arrangement of a call-bell in thehollow part of a caster-stand, the touch-rod of said bell extending upthrough the handle of the caster-stand and acting on the clapper orclappers of the bell in such a manner that the bell is entirelyconcealed, and that the same does not interfere With the revolvingmotion of the frame containing the caster. i,

In the drawingy The letter A designates a bell which is `supported onthe stand B, as shown.

Through the center of the bell rises the tonch-rod C, and to Athe innerend of this Atouch-rod is attached a toothed rack, a, Vwhich gears in apinion, i), mounted on a pin secured ifi the stand B.

From said pinion extends a rod, c, tothe end oi which is secured theclapper d.

A roller, b', which bears'on the edge of the rack opposite to the pinionb, sel-vesto keep said rack in gear with the pinion.

' This roller is mounted on a pin secured in the stand B, and, ifdesired, it may also be provided with cogs, to gear in correspondingcogs on the edge of the rack, so that this second clapper will beoperated simultaneously with the clapper (l.

A shoulder, c, above the rack c, prevents the touchrod from risingbeyond the desired point.

By depressing the touch-rod C the clapper is thrown in contact with thebell, and when the touch-rod is released it is carried back to itsoriginal position by the weight of the clapper.'

By. these means a mechanism for operating callbells is obtained which isvery simple and cheap, all its parts being so constructed that they canbe cast and pnt together with little trouble or loss of time.

If the stand of the call-bell is constructed with a revolvingcaster-frame, D, the touch-rod C extends up through the handle ot' saidstand, and the mechanism required for sounding the bell does not intel'-fere with the revolving motion of said caster-frame, and at the sametime the bell is entirely concealed under the casterstand.

What .il claim as new, and desire to secure by Letters Patent, is

The rack a, secured to the touch-rod C, and gearing in a pinion, 11,which carries .the clapper d in combination with a bell, A, mounted on astand, B, with or without the' revolving frame D, substantially as shownand described.

F. A. BLATTERLIEN.

' Witnesses:

GIIAS. H. SHAW, GEORGE A. Fay.

